Effects of Short Glass Fibers and Particulate Fillers on Fatigue Crack Propagation in Polyamides.

Abstract

The fatigue crack propagation (FCP) behavior (at 10 Hz) of several commercial short-glass-fiber and mineral-reinforced nylon composites has been investigated. The FCP rates can be described in terms of the well known Paris relationship. Significant improvement in FCP performance was found for the glass-fiber-reinforced materials in comparison to that of the pure matrix materials (nylon 66 and nylon 612). Also, the FCP resistance was found to increase with increasing fiber content and interfacial adhesion for nylon 66. Despite the fact that specimens were cut from injection-molded plaques, no or only slight effects of orientation were observed by testing specimens with cracks growing parallel and perpendicular, respectively, to the major flow direction.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1982
Accession Number
ADA124140

Entities

People

  • John A. Manson
  • Reinhold W. Lang
  • Richard W. Hertzberg

Organizations

  • Lehigh University

Tags

Communities of Interest

  • Air Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Chemical Engineering
  • Chemistry
  • Composite Materials
  • Crack Propagation
  • Electron Microscopy
  • Engineering
  • Fast Fractures
  • Materials
  • Materials Engineering
  • Materials Laboratories
  • Materials Processing
  • Materials Science
  • Mechanics
  • Military Research
  • Plastics
  • Reinforced Plastics
  • United States

Fields of Study

  • Materials science

Readers

  • Materials Science (Mechanical Engineering).
  • Reinforced Composite Materials